ASTROSAT CZTI

Data Quality Report

Orbit 03106

Creation date: 2024-06-27T14:24:42.789663
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_237T03_9000000426_03106cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03106cztM0_level2_quad_clean.evt
Size (bytes)591,632,640101,283,840
Size564.2 MB 96.6 MB
Events in quadrant A3,980,034628,103
Events in quadrant B4,758,753623,773
Events in quadrant C4,248,043626,536
Events in quadrant D4,360,354604,589

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175443
B0198662
C0184242
D0188712

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8410250.297265%
B84101461.736029%
C8410941.117717%
D84101111.319857%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 9935 8412 2 2 0.02% 0.02%
B 9935 8412 30 30 0.30% 0.36%
C 9935 8412 42 42 0.42% 0.50%
D 9935 8412 71 71 0.71% 0.84%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 5 81027 393.27 978 955 203.6
A 8 15 72781 352.77 978 955 203.6
A 0 226 18042 83.92 978 955 203.6
B 15 204 336428 1761.12 989 967 190.5
B 0 219 258571 1352.38 989 967 190.5
B 1 223 135122 704.29 989 967 190.5
C 1 192 354696 1596.2 948 955 221.6
C 6 80 66129 294.09 948 955 221.6
C 0 219 48485 214.47 948 955 221.6
D 13 223 231657 993.58 936 914 232.2
D 13 239 206198 883.96 936 914 232.2
D 13 114 197223 845.31 936 914 232.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter